<template>
  <!-- tab选项卡 -->
  <view class="index-product-wrapper" :style="[mbConfig]">
    <view class="nav-bd longTab" :style="[tabBgColor]">
      <scroll-view scroll-x="true" style="white-space: nowrap; display: flex" :scroll-left="tabLeft">
        <view class="longItem"
              :style="'color:' + (index == ProductNavindex ? checkColor : fontColor)+';--color:'+checkColor"
              :data-index="index" :class="index===ProductNavindex?'click':''" v-for="(item,index) in navList"
              :key="index" :id="'id'+index" @click="ProductNavTab(item, index)">{{ item.val }}
        </view>
      </scroll-view>
    </view>
    <view :style="[boxStyle]">
      <!-- 单列 -->
      <block v-if="itemStyle == 0">
        <view class="listA" :style="[gridGap]">
          <view class="item" v-for="(item, index) in tempArr" :key="index" @click="goDetail(item)">
            <view class="pictrue">
              <easy-loadimage :image-src="item.image"
                              :radius="dataConfig.contentStyle.val"></easy-loadimage>
              <view v-if="item.activityStyle" :style="{ backgroundImage: `url(${item.activityStyle})` }"
                    class="border-picture"></view>
            </view>
            <view class="text-info text-add">
              <view>
                <view class="title box-line2" :style="[titleColor]">
                  <text v-if="item.productTags && item.productTags.locationLeftTitle.length"
                        class="font-bg-red mr10 merType bg-color">{{ item.productTags.locationLeftTitle[0].tagName }}
                  </text>
                  <text v-if="titleShow">{{ item.name }}</text>
                </view>
              </view>
              <view v-if="item.productTags && item.productTags.locationUnderTitle.length">
                <text
                    v-for="items in item.productTags.locationUnderTitle.length>3?item.productTags.locationUnderTitle.slice(0,3):item.productTags.locationUnderTitle"
                    :key="items.id" class="mr10 tagSolid">{{ items.tagName }}
                </text>
              </view>
              <view class="price acea-row row-middle" :style="[priceColor]">
                <view v-if="priceShow">
                  <svip-price :svipIconStyle="svipIconStyle" :productPrice="item"
                              :svipPriceStyle="svipPriceStyle" :priceColor="priceColor"></svip-price>
                </view>
              </view>
              <view class="old-price" v-if="soldShow" :style="[soldColor]">
                已售 {{ item.sales || 0 }} {{ item.unitName }}
              </view>
            </view>
          </view>
        </view>
      </block>
      <!-- 两列 -->
      <block v-if="itemStyle == 1">
        <view class="listC" :style="[gridGap]">
          <view class="item" :style="[contentStyle]" v-for="(item, index) in tempArr" :key="index"
                @click="goDetail(item)">
            <view class="pictrue">
              <easy-loadimage :image-src="item.image"
                              :radius="dataConfig.contentStyle.val"></easy-loadimage>
              <view v-if="item.activityStyle" :style="{ backgroundImage: `url(${item.activityStyle})` }"
                    class="border-picture"></view>
            </view>
            <view class="text-info">
              <view class="title box-line2" :style="[titleColor]">
                <text v-if="item.productTags && item.productTags.locationLeftTitle.length"
                      class="font-bg-red mr10 merType bg-color">{{ item.productTags.locationLeftTitle[0].tagName }}
                </text>
                <text v-if="titleShow">{{ item.name }}</text>
              </view>
              <view v-if="item.productTags && item.productTags.locationUnderTitle.length">
                <text
                    v-for="items in item.productTags.locationUnderTitle.length>3?item.productTags.locationUnderTitle.slice(0,3):item.productTags.locationUnderTitle"
                    :key="items.id" class="mr10 tagSolid">{{ items.tagName }}
                </text>
              </view>
              <view class="row-middle price" :style="[priceColor]">
                <view v-if="priceShow">
                  <svip-price :svipIconStyle="svipIconStyle" :priceColor="priceColor"
                              :productPrice="item" :svipPriceStyle="svipPriceStyle"></svip-price>
                </view>
                <view class="old-price " v-if="soldShow" :style="[soldColor]">
                  已售 {{ item.sales || 0 }} {{ item.unitName }}
                </view>
              </view>
            </view>
          </view>
        </view>
      </block>
      <!-- 三列 -->
      <block v-if="itemStyle == 2">
        <view class="listB" :style="[gridGap]">
          <view class="item" v-for="(item, index) in tempArr" :key="index" @click="goDetail(item)">
            <view class="pictrue">
              <easy-loadimage :image-src="item.image"
                              :radius="dataConfig.contentStyle.val"></easy-loadimage>
              <view v-if="item.activityStyle" :style="{ backgroundImage: `url(${item.activityStyle})` }"
                    class="border-picture"></view>
            </view>
            <view class="text-info">
              <view class="title box-line2" :style="[titleColor]">
                <text v-if="item.productTags && item.productTags.locationLeftTitle.length"
                      class="font-bg-red mr10 merType bg-color">{{ item.productTags.locationLeftTitle[0].tagName }}
                </text>
                <text v-if="titleShow">{{ item.name }}</text>
              </view>
              <view v-if="item.productTags && item.productTags.locationUnderTitle.length">
                <text
                    v-for="items in item.productTags.locationUnderTitle.length>3?item.productTags.locationUnderTitle.slice(0,3):item.productTags.locationUnderTitle"
                    :key="items.id" class="mr10 tagSolid">{{ items.tagName }}
                </text>
              </view>
              <view class="price" :style="[priceColor]">
                <view v-if="priceShow">
                  <svip-price :svipIconStyle="svipIconStyle" :priceColor="priceColor"
                              :productPrice="item" :svipPriceStyle="svipPriceStyle"></svip-price>
                </view>
              </view>
              <view class="old-price" v-if="soldShow" :style="[soldColor]">
                已售 {{ item.sales || 0 }} {{ item.unitName }}
              </view>
            </view>
          </view>
        </view>
      </block>
      <!-- 大图 -->
      <block v-if="itemStyle == 3 && tempArr.length">
        <view class="listBig" :style="[gridGap]">
          <view class="itemBig" v-for="(item,index) in tempArr" :key="index" @click="goDetail(item)">
            <view class="img-box">
              <easy-loadimage :image-src="item.image"
                              :radius="dataConfig.contentStyle.val"></easy-loadimage>
              <view v-if="item.activityStyle" :style="{ backgroundImage: `url(${item.activityStyle})` }"
                    class="border-picture"></view>
            </view>
            <view class="name box-line2" :style="[titleColor]">
              <text v-if="item.productTags && item.productTags.locationLeftTitle.length"
                    class="font-bg-red merType mr10 bg-color">{{ item.productTags.locationLeftTitle[0].tagName }}
              </text>
              <text v-if="titleShow">{{ item.name }}</text>
            </view>
            <view style="padding: 0 8px;"
                  v-if="item.productTags && item.productTags.locationUnderTitle.length">
              <text
                  v-for="items in item.productTags.locationUnderTitle.length>3?item.productTags.locationUnderTitle.slice(0,3):item.productTags.locationUnderTitle"
                  :key="items.id" class="mr10 tagSolid">{{ items.tagName }}
              </text>
            </view>
            <slot name="center"></slot>
            <view class="row-middle price" :style="[priceColor]">
              <text v-if="priceShow">
                <svip-price :svipIconStyle="svipIconStyle" :priceColor="priceColor" :productPrice="item"
                            :svipPriceStyle="svipPriceStyle"></svip-price>
              </text>
              <view class="old-price mt18" v-if="soldShow" :style="[soldColor]">
                已售 {{ item.sales || 0 }} {{ item.unitName }}
              </view>
            </view>
          </view>
        </view>
      </block>
    </view>
  </view>
</template>

<script>
import {
  productList,
  productByidsApi
} from '@/api/product.js';
import easyLoadimage from '@/components/base/easy-loadimage.vue';
import svipPrice from '@/components/svipPrice.vue';
import {
  getMerProListApi
} from "../../api/merchant";

export default {
  name: 'homeTab',
  props: {
    dataConfig: {
      type: Object,
      default: () => {
      }
    },
    merId: { // 商户id
      type: Number,
      default: 0
    },
  },
  data() {
    return {
      //普通价格
      svipPriceStyle: {
        svipBox: {
          height: '26rpx',
          borderRadius: '60rpx 56rpx 56rpx 20rpx',
        },
        icon: {
          height: '26rpx',
          fontSize: '18rpx',
          borderRadius: '12rpx 0 12rpx 2rpx'
        },
        price: {
          fontSize: '38rpx'
        },
        svipPrice: {
          fontSize: '22rpx'
        }
      },
      //svip价格
      svipIconStyle: {
        svipBox: {
          height: '26rpx',
          borderRadius: '24rpx 40rpx 40rpx 0.4rpx',
        },
        price: {
          fontSize: '38rpx'
        },
        svipPrice: {
          fontSize: '18rpx'
        }
      },
      tempArr: [],
      iSshowH: false,
      ProductNavindex: 0,
      itemStyle: 0, //样式类型
      themeColor: '#f00',
      titleConfig: 1, //标题位置
      infoColor: '#999',
      goodType: 3,
      loadend: false,
      loading: false,
      page: 1,
      goodsSort: 0, //排序，0综合，1销量，2价格
      isWidth: 0, //每个导航栏占位
      tabLeft: 0,
      limit: 0 //分页条数
    };
  },
  components: {
    easyLoadimage,
    svipPrice
  },
  created() {
    let that = this
    uni.getSystemInfo({
      success(e) {
        that.isWidth = (e.windowWidth) / 5;
      }
    })
  },
  computed: {
    //标签文字颜色
    fontColor() {
      return this.dataConfig.fontColor.color[0].item
    },
    //选中颜色
    checkColor() {
      return this.dataConfig.checkColor.color[0].item
    },
    //选项卡背景颜色
    tabBgColor() {
      return {
        background: `linear-gradient(${this.dataConfig.tabBgColor.color[0].item}, ${this.dataConfig.tabBgColor.color[1].item})`,
      };
    },
    //页面间距
    mbConfig() {
      return {
        marginTop: this.dataConfig.mbConfig.val ? this.dataConfig.mbConfig.val + 'px' : 0
      }
    },
    //分类列表
    navList() {
      return this.dataConfig.tabItemConfig.list;
    },
    //最外层盒子的样式
    boxStyle() {
      return {
        borderRadius: this.dataConfig.bgStyle.val * 2 + 'rpx',
        background: `linear-gradient(${this.dataConfig.bgColor.color[0].item}, ${this.dataConfig.bgColor.color[1].item})`,
        margin: this.dataConfig.topConfig.val * 2 + 'rpx' + ' ' + this.dataConfig.lrConfig.val * 2 + 'rpx' +
            ' ' + 0,
        padding: this.dataConfig.upConfig.val * 2 + 'rpx' + ' ' + 0 + ' ' + this.dataConfig.downConfig.val *
            2 + 'rpx'
      }
    },
    //商品间距
    gridGap() {
      return {
        'grid-gap': this.dataConfig.contentConfig.val * 2 + 'rpx'
      }
    },
    //图片的圆角和高度
    imgStyle() {
      return {
        'border-radius': this.dataConfig.contentStyle.val * 2 + 'rpx',
      }
    },
    //价格颜色
    priceColor() {
      return {
        'color': this.dataConfig.priceColor.color[0].item,
      }
    },
    //商品名称颜色
    titleColor() {
      return {
        'color': this.dataConfig.titleColor.color[0].item,
      }
    },
    //已售数量
    soldColor() {
      return {
        'color': this.dataConfig.soldColor.color[0].item,
      }
    },
    //商品名称
    titleShow() {
      if (this.dataConfig.tabItemConfig.list[this.ProductNavindex] && this.dataConfig.tabItemConfig.list[this
          .ProductNavindex].activeList.showContent.includes(0)) {
        return true;
      } else {
        return false;
      }
    },
    //价格
    priceShow() {
      if (this.dataConfig.tabItemConfig.list[this.ProductNavindex] && this.dataConfig.tabItemConfig.list[this
          .ProductNavindex].activeList.showContent.includes(1)) {
        return true;
      } else {
        return false;
      }
    },
    //销量
    soldShow() {
      if (this.dataConfig.tabItemConfig.list[this.ProductNavindex] && this.dataConfig.tabItemConfig.list[this
          .ProductNavindex].activeList.showContent.includes(2)) {
        return true;
      } else {
        return false;
      }
    },
    //内容圆角
    contentStyle() {
      return {
        'border-radius': this.dataConfig.contentStyle.val ? this.dataConfig.contentStyle.val + 'px' : '0'
      };
    },
  },
  mounted() {
    //默认加载第一项的商品数据
    if (this.navList && this.navList.length) {
      this.itemStyle = this.navList[0].activeList ? this.navList[0].activeList.styleType : 0;
      if (this.navList[0].activeList && this.navList[0].activeList.activeProTabIndex == 0) {
        this.getProductByids(this.navList[0].activeList.goods);
      } else {
        this.limit = this.navList[0].activeList ? this.navList[0].activeList.num : 3;
        if (this.navList[0].activeList) {
          this.getGoodList(this.navList[0].activeList);
        }
      }
    }
  },
  //uniapp小程序用deep重写组件样式不生效
  options: {
    styleIsolation: 'shared'
  },
  methods: {
    //根据商品id集合查询对应商品
    getProductByids(data) {
      if (!data.length) return;
      uni.showLoading({
        title: '加载中...'
      });
      let ids = data.map((item) => item.id).join(',');
      productByidsApi(ids).then((res) => {
        this.tempArr = res.data;
        uni.hideLoading();
      })
          .catch(res => {
            uni.hideLoading();
          });
    },
    // 选项卡切换点击事件；商品类型选择除第一个指定商品，加载商品从平台端获取数据，其余选项均请求接口加载
    changeTab(item, index) {
      this.tempArr = [];
      if (item.activeList.activeProTabIndex == 0) {
        this.getProductByids(item.activeList.goods);
      } else {
        this.page = 1;
        this.loadend = false;
        this.getGoodList(item.activeList);
      }
    },
    // 商品列表
    async getGoodList(item) {
      let val = item.activeValue; //分类id，品牌id，商户id
      let goodsSort = item.goodsSort // 商品排序，0综合，1按销量，2按价格
      let typeIndex = item.activeProTabIndex //1分类，2品牌，3商户
      let priceOrder = '';
      let salesOrder = '';
      if (this.loadend) return false;
      if (this.loading) return false;
      if (goodsSort === 0) {
        priceOrder = '';
        salesOrder = '';
      } else if (goodsSort === 1) {
        priceOrder = '';
        salesOrder = 'desc';
      } else {
        priceOrder = 'desc';
        salesOrder = '';
      }
      let params = {
        page: this.page,
        limit: this.limit,
        brandId: this.merId ? null : typeIndex == 2 ? val : '',
        cid: !this.merId && typeIndex == 1 ? val : '',
        merId: this.merId ? this.merId : typeIndex == 3 ? val : '',
        priceOrder: priceOrder,
        salesOrder: salesOrder,
        cids: this.merId && typeIndex == 1 ? val : '',
      }
      if (this.merId) {
        delete params.cid;
        delete params.brandId;
      }
      const {
        code,
        data
      } = this.merId ? await getMerProListApi(params) : await productList(params)
      if (code == 200) {
        let list = data.list;
        this.tempArr = this.$util.SplitArray(list, this.tempArr);
        let loadend = list.length < this.limit;
        this.loadend = loadend;
        this.page = this.page + 1;
      }
      this.loading = false;
    },
    getMerGoodList() {
      getMerProListApi(this.params).then(res => {
        this.$set(this.params, 'page', this.params.page + 1);
        this.goodScroll = this.params.page > res.data.totalPage;
        this.tempArr = this.tempArr.concat(res.data.list || []);
        this.loading = false
      });
    },
    // 选项卡切换
    ProductNavTab(item, index) {
      this.ProductNavindex = index;
      this.itemStyle = this.navList[index].activeList.styleType;
      this.goodsSort = item.activeList.goodsSort;
      this.$nextTick(() => {
        let id = 'id' + index;
        this.tabLeft = (index - 2) * this.isWidth //设置下划线位置
      })
      this.limit = item.activeList.num;
      this.changeTab(item, index);
    },
    goDetail(item) {
      this.$emit('detail', item);
    }
  }
}
</script>

<style lang="scss" scoped>
::v-deep .x-money {
  color: inherit !important;
}

.longTab {
  .longItem {
    height: 70rpx;
    display: inline-block;
    line-height: 70rpx;
    text-align: center;
    font-size: 28rpx;
    color: #333333;
    white-space: nowrap;
    margin-right: 46rpx;

    &.click {
      font-weight: bold;
      font-size: 30rpx;
      position: relative;

      &::after {
        content: '';
        width: 40rpx;
        height: 4rpx;
        background: var(--color);
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
      }
    }
  }
}

.index-product-wrapper {

  &.on {
    min-height: 1500rpx;
  }

  .nav-bd {
    height: 70rpx;
    line-height: 70rpx;
    padding-left: 20rpx;
    background: #fff;

    .item {
      display: inline-block;
      font-size: 28rpx;
      color: #333;
      font-weight: 400;
      padding-right: 48rpx;

      &.on {
        border-radius: 0;
      }
    }
  }
}

.text-add {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.listBig {
  display: grid;
  grid-template-rows: auto;
  grid-template-columns: repeat(1, 1fr);
  padding: 0 20rpx;

  .itemBig {
    width: 100%;

    .img-box {
      width: 100%;
      height: 710rpx;
      position: relative;
    }

    .name {
      font-size: 28rpx;
      font-weight: bold;
      margin-top: 16rpx;
    }

    .price {
      font-size: 12px;
      margin-top: 10rpx;

      .num {
        font-size: 32rpx;
        margin-right: 10rpx;
      }

      .old-price {
        color: #aaa;
        font-weight: normal;
      }
    }
  }
}

.listA {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  grid-template-rows: auto;
  width: 100%;
  padding: 0 20rpx;

  .item {
    display: flex;
    width: 100%;

    .pictrue {
      width: 220rpx;
      height: 220rpx;
      position: relative;

      image {
        width: 100%;
        height: 100%;
      }
    }

    .text-info {
      margin-left: 14rpx;
      flex: 1
    }
  }
}

.listB {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  width: 100%;
  padding: 0 20rpx;

  .item {
    .pictrue {
      width: 100%;
      height: 220rpx;
      position: relative;

      image {
        width: 100%;
        height: 100%;
      }
    }

    .text-info {
      padding: 16rpx 0;
    }
  }
}

.listC {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: auto;
  width: 100%;
  padding: 0 20rpx;

  ::v-deep .origin-img,
  ::v-deep .easy-loadimage {
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
  }

  .item {
    background-color: #fff;
    overflow: hidden;

    .pictrue {
      width: 100%;
      height: 345rpx;
      overflow: hidden;
      position: relative;

      image {
        width: 100%;
        height: 100%;
      }
    }

    .text-info {
      padding: 16rpx 0;

      .title {
        width: 300rpx;
      }
    }
  }
}

.text-info {
  .title {
    width: 100%;
    height: 80rpx;
    line-height: 40rpx;
    color: #333;
  }

  .old-price {
    font-weight: normal;
    font-size: 24rpx;
    color: #999;
  }

  .price {
    font-size: 36rpx;
    font-weight: 550;

    text {
      padding-bottom: 4rpx;
      font-size: 26rpx;
      font-weight: normal;
    }
  }
}

.mer_badge {
  padding: 0 4rpx;
  background-color: theme;
  color: #fff;
  font-size: 20rpx;
  display: inline-block;
  border-radius: 4rpx;
  line-height: 28rpx;
  height: 28rpx;
}

.mt18 {
  margin-top: 16rpx;
}

.box-line2 {
  overflow: hidden;
}
</style>